Firstly, get your set - and as digital has just hit the shops, why not start off with that - then get a track plans booklet and build up a collection of track to make up a cool circuit. Perhaps model it after a real track. If you have the space, think about building a table-top base. That always helps to get you completely into the hobby.
You will then be well on the road like the rest of us, spending a good part of your disposable income on cars and accessories.
I'm based in Northampton and go to the W'boro club like John - worth a visit and we can talk in person about what you want to develop at home. Also (i realise this is a self plug) but check out the Tuckers Tips on the Getslotted.co.uk site and also browse the forums as there is loads (and I mean loads) of info in here if you take your time and browse
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